It’s holiday party season, and etiquette landmines abound, between the abundant buffets, free-flowing booze and potential for wardrobe faux pas. Twin Cities-based manners expert Juliet Mitchell, who runs the Life Etiquette Institute, has seen and heard of all sorts of guest mishaps, including employees who have lost jobs by overdoing it at the company party’s open bar.
Planning ahead and understanding the host’s perspective helps promote appropriate behavior, Mitchell says. She shares her list of the top 10 mistakes party guests make — and tips for how to avoid them.
1. Failing to RSVP
It’s important to let the party host know if you plan to attend or not, Mitchell says, as the headcount drives planning for everything from seating to food. Make sure to check who is included in the invitation and don’t bring uninvited guests. If you know the host well, you can call and ask for an exception. “But you certainly don’t want to put any extra stress on the host,” Mitchell notes. If you’re unsure of your ability to attend, responding with a “maybe” is better than not responding at all.
2. Arriving too early, too late, or staying too long
It’s OK to arrive early if you ask the host ahead of time and offer to lend a hand. Otherwise, showing up while the host is attending to last-minute details can be an imposition. Better to pop into a nearby coffee shop or sit in your car for a few moments, Mitchell suggests. If you do enter early, make it clear to your host that you don’t need to be entertained. And always be on time for programmed events — late-arriving wedding guests have been known to miss the entire ceremony, Mitchell says .
If the invitation lists an end time, prepare to leave then, unless the host encourages you to stay longer. “If the host says, ‘I’m so glad you came, it’s been great.’ Then start walking to the door,” Mitchell advises. “And ‘Let’s get together again soon’ means, ‘This party is over.’” You can offer to stay late and clean up, but the host may not want people around if they’ve already expended a lot of energy preparing for the party and entertaining guests.

3. Whining or complaining